Traffic control



March 5, 1929. s. M. EDWARDS 1 3 35 1 TRAFFIC CONTROL Filed April 27,1928 2 Sheets-Sheet 1 prmzdmmk 1 V INVENTOR ATTORNEY 2 Sheets-$heet 2dMEdu/a mi;

March 5., 1929. s. M. EDWARDS TRAFFIC CONTROL Filed April 27, 1928INVENTOR W I BY 485a I ATTORNEY 55 being-arrange? arm is fastened toeach end Patented Ma. 5,1929.

' UNITED F-ICE.

smunr. m. Enwanns, or rAneo, nonrn nanora.

TRAFFIC CONTROL.

Application filed April 2?, 1928, Serial No. 273,358.

v '5 at right angles to each other, with a semahore arm on each end ofeach shaft, each arm eing weighted so that it will normally remain in avertical position, with motor driven means in the casing for turningfirst one shaft and then the other a complete revolution, one shaft withits arm remaining idle while the other shaft and its arms aremoving,thus indicating that traflic'on the street facing the moving arms isfree to move, while traffic on the intersecting street must-stop. A

A further object of the invention is .to provide mutilated gears forrotating the shafts from the motor driven means so that the shafts willbe rotated to revolve the arms and then, when the plain portions of thegears come opposite the other gears, the arms will come'to rest inraised position and will be I held in thisv position by the weights.

This invention also consists'in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in. the accompanying drawingsand specifically pointed out in the appended claims. In describing myinvention in detail, reference will be had to the. accompanying drawingswherein like characters denote like or corresponding parts throughoutthe several views, and in which Figure l is an elevation of the improvedtraffic controlling tower.

Figure 2 is a top plan view thereof. Figure 3 is a section on line 33 ofFigure 1.

4o Figure 4 is a section on line of Fig" ure 3.

Figure 5 is a section on line 55 of Figure 3. I

Figure 6 is a section on line 6-6 of Figure 1. i

Figure 7 is a section on line 77 of Figure 3.

In these views, the numeral 1 indicates a casing or housingjsupported ona post 2 which is placed prefera ly at the intersection of two streets.A shaft 3 is journaled in the housing and passes beyo d the sidesthereof and a second shaft 1 is journaled in the casing and passesthrough the sides thereof, these shafts at right angles to each other asshown.

of each shaft, each arm-having aweight 6 on the arms in verticalposition. A pinion 7 is fastened to the shaft 3 and a shaft 8 isjournaled in the casing and parallels the shaft 3.

' its lower end, these weights tending to hold This shaft 8 has fastenedthereto a mutilated gear 9, with the teeth omitted from a portionthereof, gear 9 meshing with the pinion.

The shaft 8 has attached thereto a pinion 10 which meshes with a gear 11ona shaft 12 journaled in the casing and said shaft 12 carries a wormgear 13 which meshes with a worm 13' ona. shaft 14 journaled in theeasing and which has a worm gear 15 thereon meshing with a worm 16 on ashaft 17 jour naled in the casing and havinga pulley 18 as clearlyrshownin Figure 5, this thereon over which passes a belt 19 which also passesovera small pulley 20 on the shaft of a motor 21 mounted in the casing.Thus the shaft 8 will be rotated from the motor through the connectionsshown.

A mutilated gear 22 is fastened to the shaft 7 8 with its teeth meshingwith a beveled pinion 23 on a stub shaft 24 journaled in a frame 25carried by the casing and this shaft24 is connected by the gears 26-withthe' shaft 4.

Thus it will be seen that one shaft-with its arms is rctated by themotor a complete revolution while the other shaft remains stationarywith its arms in raised -po'sition.- Then the first shaft remainsstationary w1th its armsin vertical position while the second shaft isbeing rotated a complete revolution.

As the arms on one shaft'are revolving, the

traffic facing these revolving arms crosses the intersect on, while thetraffic faclng the stationary arms stop.

for controlling.trafiic at the intersection of two streets so that it isnot necessary to have a traffic oflicer at'the intersection.

I also provide a pair of bells 27 for sounding an alarm tocall attentionto the movement of the arms, the hammers 28 of these hells beingactuatedbythe arms.

It-is thought from th foregorng description that the advantages andnovel features.

of my invention will berea'dily' apparent.

It is to be understood that I may make changes in the construction andthe combination and arrangement of the several parts, provided that suchchanges fall within the scope of'the appended claims.

What I claim is 1; An automatic traffic controlling device comprising atowerya pair of shafts extending through the upper part of the tower,one shaft being arranged at right angles to the other with each shaftpassing through the walls of the tower, an armon each end of each shaft,:1 weight on the arm for normally holding the arms in raised position, amotor in the tower and means actuated thereby for first impartingmovement to one shaft to rotate the arms thereon a complete revolutionand then the other shaft to revolve its arms a complete revolution, oneshaft being stationary while the other shaft is revolving.

2. An automatic traffic controlling device comprising a tower, a pair ofshafts extending through the upper part of the tower, one shaft beingarranged at right angles to the other with each shaft passing throughthe walls of the tower, an arm on each end of each shaft, a weight onthe armhfor normally holding the arms in raised position, a

motor in the tower, means actuated thereby for first imparting movementto one shaft to rotate the arms thereon a complete revolution and thenthe other shaft to lower the arms connected with said other shaft, oneshaft and its arms remaining idle while the other shaft is rotating,such means including mutilated gears. 3. An automatic trafficcontrolling device comprising a casing, a pair of shafts journaledtherein vith their ends extending beyond the sides of the casing, oneshaft being arranged at right angles to the other, a weighted arm oneach end of each shaft, a third shaft journaled in the casing, a motorfor driving the third shaft, a mutilated gearon the thir-d shaft, amutilated pinion thereon, a gear on one of the other shafts meshing withthe mutilated gear, a stub shaft, a pinion thereon meshing with themutilated pin-.' ion on the third shaft and gearing connecting the stubshaftwith the second arm carrying shaft.

In testimony SAMUEL M. EDWARDS.

whereof I; affix' my signature.

